The Kardashians really do keep everything in the family. Rob Kardashian, xx, who has struggled to carve out an independent business career comparable to his sisters, has excitedly launched his new sock line this year with Arthur George.

But the reality tv star, (who regularly complains of comparisons between him and his three older sisters Kourtney, Khloe and Kim on Keeping Up With The Kardashians), instead chose to endorse the services of his younger sisters Kendall and Kylie to show off the new range.

The line was soft launched in April of this year and reported disappointing sales, which may be why he enlisted the help of his famous siblings once again in order to promote them.

The 26-year-old is currently in the middle of a body overhaul, in an attempt to lose the reported 40lbs he has gained over the last 12 months. And he ditched the diet over the Fourth of July weekend for barbecue festivities alongside some bikini clad pals, according to his Twitter.